castelnau



(No Model.) l -3 sheets-sheet `1.

CASTELNAU. ORE GONGBNTRATOR.

No. 446,055. Patented Feb. 10,1891.

om t e e h s w e nu h s ,3 `UR. mm .G SN A0 CHU fm M0 (No Model.)

No. 446,055. Patented Feb. '10, 1891.

Wammes y! fm1 @34% (No Model.) `3 sheetssheet 3.

IVI. CASTELNAU. ORE`0UNCHNTMToR-.i No. 446,055. Patented Feb. 10,1891.

pdx

y dwf" n4: News Penas om, muro-uma., msmuarou, u. c.

UNITED STATES MARCELIN CASTELNAU, OF PARIS, FRANCE.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 446,055, dated February 10, 1891.

Application tiled November 5, 1890. Serial No. 370,379. (No model.)

To all whom it may concern:

Be it known that I, MARCELIN CASTELNAU, a citizen of the French Republic, residing at Paris, in said Republic, have invented a certain new and useful Improvement in Ore-Conoentrators, of which the following is aspecification.

My invention relates to certain new and useful improvements in a class of concentrators or machines used for treating ores or other materials, the component parts of which are of different specific gravities, the object of such machines being to separate the minerals from the earthy waste, and particularly relates to an improvement on a machine for which I made application for Letters Patent in the United State on the 10th day of April, 1390, under Serial No. 347,373.

To clearly explain the nature of my present improvement, reference is made to the accompanying drawings, in Which- Figure 1 is afront elevation of my improved machine, with a part of the collecting-troughs in section, taken on line e' e', Fig. 3. Fig. 2 is a sectional end View of same on the line @o a' of Fig. 1. Fig. 3 is a plan View of the machine, showing the collecting-troughs; and Figs. 4

Aand 5 are diagrammatic viewsillust-ratingthe action of the machine.

The machine consists of a suitable framework 1, which carries rollers 2, which serve to support an endlessV traveling belt 3, of rubber, or of sheet-steel, or other suitable material, which passes over drums 44 at each end of the machine. These drums are carried in bearings in the frame-work, the latter being so arranged that the drums are at an angle to the floor-line, as are also the supporting-rollers 2 2, the result being that the traveling belt is maintained Aat this angle in the direction of its Width, though it is parallel to the loorin the direction of its length. The angle of the belt may be varied slightly to suit any particular class of mineral by adjusting the bearings of the forward drum 4 in any convenient way, as by means of the adjustingscrews 25 25, by which the bearings are carried, one being raised and the other lowered, as desired. Both drums may be adjusted in the same way, if desired. The bearings are also adjustable endwise by means of the screws 26 26, so that the belt may be tightened A distributer 8 is placed over the belt at the forward end, and into this the ore or other material is fed through a pipe 9 from a hopper 10, which is supplied from a chute 10. The belt as it travels under the machineis supported on rollers 2, carried in bearings 2b on either side of the frame-Work.

A Water-main 11 is provided at some point above the machine, and from this are branch pipes 12, 13, 14, and 14, each having regulating-valves 15 and terminating in T-shaped branches 16, 17, 1S, and 1S, the former 16, arranged to supply fine jets of water, as shown, being placed at the side of and parallel with the belt, butjust above it. The pipes 17 and 18 are placed centrally of the belt and also above it, While the pipe 18, which is shorter, is placed near the edge of the belt. All of the branches are capable of being turned to different angles, so that the fioW of Water may be straight across the belt or at an angle to same. The pipe 17 directs the Water in perpendicular jets onto the belt and is provided with taps 19, by which the IioW may be regulated. The pipes 18 and 1Sa have fine jets similar to the pipe 16. A gutter or channel 20 is carried by the frame-work along the lower edge of the belt to collect the material from the latter. At the forward end of the machine pipes 21 communicate with this gutter 20 and With a trough 22, placed on or in the fioor in front of the machine. At midway of the belt are similar pipes 21, communicating with a trough 22, and at the rear end of the belt are pipes 2lb, communicating with a trough 22h. The trough 22 receives the Waste earthy material, as hereinafter explained, and passes to any convenient point. The trough 22rt receives the next material from the belt, consisting of the poorer quality of ore and metal which is deposited in the tanks 23, and the trough 22b receives the4 rich'ore or float metal which is deposited in the tanks 24. Two of these tanks are shown for each trough, but one'only is used at a time, the other being closed by a sluice-valve or similar arrangement 27, so that it may be opened When the other is full and ready to be cleared out, so as to preserve the continuous action of the machine.

The operation of the machine is as follows: The mineral is fed to the distributer 8, which consistsA of a tray having projections SALL to distribute the material, said tray being placed on a slight slope, so that the material falls down over its edge onto the upper edge of the belt 3, which is traveling in the direction of the arrow. Its action at this point is best illustrated by the diagraimFigs. 4 and 5. The

s material falls, say, upon the spot marked lw in Fig. 4, Where it is met by the current of water from the pipe 16. It istherefore subj ected to the following movements: first, in the direction 0c, due to the speed of the belt, and, second, in thedirection y, due to the current of water coming from the pipe 16. These two movements result in a movement toward the lower edge of the sloping belt in the direction of e'. It, therefore, there is received on the belt material composed of grains of equal size, but of different specific gravity, they will arrange themselves on the forward part of the belt in three different parabolic arcs y z, as shown in Fig. 5. rFliese arcs are more or less open, according to the density of. the material forming the arc x, said material consisting ot' the rich float metal which is received into the trough 22h, as hereinafter explained. The material on the arc y is of poorer quality and is received into the trough 22, while the material on the arc is waste earthy refuse which is received into the trough 22. The material composing the three parabolic arcs thus formed would, if left alone, vflow oft' the edge of the belt into the gutter 20 and away by the pipes 21 and become mixed together' again. So for the purpose of separating same I project the two iirst, or those forming'the arcs @c y, in horizontal bands or ribbons along the length of the belt and remove same separately, while thelast, or that forming the arc e, is allowed to flow oit the belt by the pipes 21. This separation is effected primarily by means or the branch water-pipe 17, which is placed at such an angle that it bisects the arcs wand y, and by means of the perpendicular jets of water therefrom causes the material forming these arcs to be projected in parallel bands along` the surfaces otn the belt, as shown, the bands marked being the material forming the arcs and the bands y the material forming the arcs y. The material of the bands 1r', which is the richest ore or float metal, travels on until it is met by the jets ofwater from the pipe 18, which washes it down into that part of the trough 2O with which the pipes 21b communicate and by which it is led into the trough 221. The material forming the bands y travels on until it is met by the jets of water from the shorter branch pipe 18, which washes it off into that part of the trough 2O with which the pipes 2la communicate and by which it is led to the trough 22.

bands y up into an arc, as shown in Fig. 3,

by which the heaviest material is driven to the top or crown of same, and if the jet is properly regulated will join and be carried away with the bands while the lighter material falls back and is swept oft the belt by the pipe 18, as described. If the material is to be separated into one quality only apart from the earthy refuse, the supplemental pipe 18 (and jet 18h) may be removed, the water from the pipe 18 sweeping it all from the belt, or if further divisions are desired more branch pipes placed at an angle with l the belt may be used.

As will be seen,'the machine is adapted to treat mixed ores containing diierent metals of different specific gravities.

I do not confine myself to the exact arrangement ot' machine or apparatus shown, as the details may be moditied'in many ways 5 but 1. In an ore-concentrator of the class having an endless traveling belt placed at an angle in the direction of its width, the combination, with said belt, of a water pipe placed at its forward end in the direction ot' its length for separating the material into parabolic arcs of different specific gravity and two or more water-pipes placed at angles to same, the jets from which project the material of said arcs into horizontal bands or ribbons, with means for separately collecting the p different grades of material, substantially as described. i

2. In an ore-concentrator of the class having an endless traveling belt placed at an angle in the direction otl its width, the combination, with said belt, of a water-pipe 16 for separating the material into parabolic arcs of different speciic gravity, a waterpipe 17 for projecting the material into horizontal bands or ribbons, a water-pipe 18 for washing oit the richest ore or float metal, a water-pipe 18a for washing oit the medium quality, a supplemental jet for removing any heavy particles from the medium quality and causing it to join the rest of the heavy particles, and a collecting-trough 2O and pipes from same for conveying the different qualities into separate troughs, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

MARCELIN CASTELNAU.

Witnesses:

RoB'r. M. Iloornr., C. MICHELET.

IOO

IOS

IIO 

